EP4322381A4 - Rotary electrical machine - Google Patents

Rotary electrical machine

Info

Publication number
EP4322381A4
EP4322381A4 EP22815836.6A EP22815836A EP4322381A4 EP 4322381 A4 EP4322381 A4 EP 4322381A4 EP 22815836 A EP22815836 A EP 22815836A EP 4322381 A4 EP4322381 A4 EP 4322381A4
Authority
EP
European Patent Office
Prior art keywords
electrical machine
rotary electrical
rotary
machine
electrical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22815836.6A
Other languages
German (de)
French (fr)
Other versions
EP4322381A1 (en
Inventor
Ryuuichirou Iwano
Tetsuya Suto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of EP4322381A1 publication Critical patent/EP4322381A1/en
Publication of EP4322381A4 publication Critical patent/EP4322381A4/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Windings For Motors And Generators (AREA)
EP22815836.6A 2021-06-04 2022-05-17 Rotary electrical machine Pending EP4322381A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021093988A JP7719636B2 (en) 2021-06-04 2021-06-04 Rotating electric machine and electric wheel
PCT/JP2022/020486 WO2022255084A1 (en) 2021-06-04 2022-05-17 Rotary electrical machine

Publications (2)

Publication Number Publication Date
EP4322381A1 EP4322381A1 (en) 2024-02-14
EP4322381A4 true EP4322381A4 (en) 2025-05-28

Family

ID=84323237

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22815836.6A Pending EP4322381A4 (en) 2021-06-04 2022-05-17 Rotary electrical machine

Country Status (5)

Country Link
US (1) US12483087B2 (en)
EP (1) EP4322381A4 (en)
JP (1) JP7719636B2 (en)
CN (1) CN117337534A (en)
WO (1) WO2022255084A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150349594A1 (en) * 2014-05-28 2015-12-03 Johnson Electric S.A. Electric Pump
US20190234405A1 (en) * 2016-09-30 2019-08-01 Nidec Tosok Corporation Pump device
JP2019530424A (en) * 2016-09-21 2019-10-17 アンスティテュ ヴェデコム Dual flow impeller cooled electric machine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08111964A (en) * 1994-10-12 1996-04-30 Toshiba Corp Rotating electric machine
JPH10234157A (en) * 1997-02-19 1998-09-02 Toshiba Corp motor
JP3661529B2 (en) 1999-11-17 2005-06-15 日産自動車株式会社 Motor cooling device
JP3951735B2 (en) * 2002-02-14 2007-08-01 株式会社明電舎 Water-cooled rotating machine
JP2006005990A (en) * 2004-06-15 2006-01-05 Toshiba Corp Vehicle drive motor
JP6107523B2 (en) * 2013-08-02 2017-04-05 マツダ株式会社 Rotating electric machine
JP6172066B2 (en) * 2014-06-24 2017-08-02 トヨタ自動車株式会社 In-wheel motor for vehicle
JP7289223B2 (en) * 2019-06-04 2023-06-09 株式会社日立製作所 Stator, rotating electrical machine, and method for manufacturing rotating electrical machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150349594A1 (en) * 2014-05-28 2015-12-03 Johnson Electric S.A. Electric Pump
JP2019530424A (en) * 2016-09-21 2019-10-17 アンスティテュ ヴェデコム Dual flow impeller cooled electric machine
US20190234405A1 (en) * 2016-09-30 2019-08-01 Nidec Tosok Corporation Pump device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022255084A1 *

Also Published As

Publication number Publication date
EP4322381A1 (en) 2024-02-14
WO2022255084A1 (en) 2022-12-08
US12483087B2 (en) 2025-11-25
JP7719636B2 (en) 2025-08-06
US20240097525A1 (en) 2024-03-21
JP2022186004A (en) 2022-12-15
CN117337534A (en) 2024-01-02

Similar Documents

Publication Publication Date Title
EP4220938A4 (en) Rotary electric machine control system
EP4138285A4 (en) Rotating electric machine
EP4131742A4 (en) Rotor of rotary electric machine
EP4092900A4 (en) Rotating electrical machine control device
EP4102686A4 (en) Rotor for dynamo-electric machine
EP4220937A4 (en) Rotary electric machine control system
EP4226488A4 (en) Resonance-enabled machines
EP4091236A4 (en) Cooling device for rotary electric machine
EP3920378A4 (en) Rotor, and rotary electric machine
EP4084295A4 (en) Rotary electric machine
EP4089886A4 (en) Stator for rotary electric machine
EP3831538A4 (en) Electric work machine
EP4197092A4 (en) Rotor and electrical machine
EP3562010A4 (en) Rotary electric machine
EP4123883A4 (en) Stator for rotating electrical machine, and rotating electrical machine
EP4269032B8 (en) Electric working machine
EP4344030A4 (en) Rotary electrical machine
EP4322381A4 (en) Rotary electrical machine
EP4216404A4 (en) Dynamo-electric machine
EP4219979A4 (en) Rotary electrical machine
EP4412058A4 (en) Rotary electric machine
EP4325696A4 (en) Rotary electric machine
EP4044412A4 (en) Rotor for rotating electrical machine
EP4358370A4 (en) Rotating electric machine case and rotating electric machine
EP4412062A4 (en) Rotating electrical machine

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20231107

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20250430

RIC1 Information provided on ipc code assigned before grant

Ipc: H02K 11/33 20160101ALI20250424BHEP

Ipc: H02K 9/19 20060101ALI20250424BHEP

Ipc: H02K 3/24 20060101ALI20250424BHEP

Ipc: H02K 9/197 20060101AFI20250424BHEP